Problem Display
PID: 187123 (3k4/p7/4Q3/K7/2B3p1/8/8/8 w - - 0 1)

de Castro, B

The Observer, 1934

(First published on Sun Sep 16 1934)

3k4/p7/4Q3/K7/2B3p1/8/8/8

#3

3 + 3


3713 Snap 2019
15239 Valois Notebooks 2019
  • SOUND
  • Tries
    • 1.Bd3?
      • threat
        • 2.Qd6+
          • 2...Kc8
            • 3.Ba6#
          • 2...Ke8
            • 3.Bg6#
      • 1...a6
        • 2.Bf5
          • threat
            • 3.Qd7#
          • 2...Kc7
            • 3.Qb6#
        • 2.Qd6+
          • 2...Kc8
            • 3.Bxa6#
          • 2...Ke8
            • 3.Bg6#
      • 1...Kc7!
    • 1.Ba6?
      • 1...Kc7
        • 2.Qe7+
          • 2...Kc6
            • 3.Bb7#
          • 2...Kb8
            • 3.Qd8#
            • 3.Qb7#
      • 1...g3!
    • 1.Qf7?
      • threat
        • 2.Be6
          • threat
            • 3.Qd7#
      • 1...a6
        • 2.Be6
          • 2...g3
            • 3.Qd7#
      • 1...Kc8!
    • 1.Qd6+?
      • 1...Kc8
        • 2.Ba6#
      • 1...Ke8!
    • 1.Qe7+?
      • 1...Kc8
        • 2.Ba6+
          • 2...Kb8
            • 3.Qd8#
            • 3.Qb7#
      • 1...Kxe7!
  • Keys
    • 1.Be2!
      • 1...Kc7
        • 2.Bxg4
          • 2...Kb7
            • 3.Qc8#
          • 2...Kb8
            • 3.Qc8#
          • 2...Kd8
            • 3.Qd7#
          • 2...a6
            • 3.Qb6#
      • 1...g3
        • 2.Qd6+
          • 2...Kc8
            • 3.Ba6#
          • 2...Ke8
            • 3.Bh5#
      • 1...a6
        • 2.Bxg4
          • 2...Kc7
            • 3.Qb6#

Anticipated by 12484(0000)



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